Question

the image shows the blastula of a whitefish. a blastula is an early embryo that is growing rapidly.

1. examine the blastula slide. how does it differ from meristem slide?
2. what phase of mitosis can you find on the slide. use the circle tool to identify it on the image?
3. how do the number of cells in interphase compare to that of the onion? suggest a reason for this difference.

Explanation:

The problem involves examining biological samples (blastula, mitosis slides, onion interphase) which falls under Biology (Natural Science). For question 12, blastula cells (animal embryo) vs meristem (plant tissue) differ: blastula cells are rounded, loosely packed, for animal embryogenesis; meristem cells are rectangular, tightly packed, for plant growth.

Answer:

Blastula slide cells (whitefish embryo) are rounded, loosely arranged (for animal embryonic development), while meristem slide cells (plant) are rectangular, tightly packed (for plant growth/mitosis in meristematic tissue).